How did 9x hacker Duong Minh Tam appropriate nearly 10 billion VND?
- Tram Ho
The amount appropriated by the 9x hacker has been withdrawn and spent 6.5 billion VND, and about 3.5 billion VND has not been withdrawn, the bank discovered that the account was blocked.
The Police Department of Ho Chi Minh City Police Department (Economic Police Department) has just prosecuted the case and prosecuted the accused Duong Minh Tam (SN 1996, living in Ward 4, Tan Binh District) for using computer networks and telecommunications networks. communication and electronic means to appropriate property.
Tam was identified as the subject who broke into the banking system and appropriated nearly 10 billion VND.
Specifically, in June, a bank in Ho Chi Minh City reported to the police about being illegally infiltrated by strangers into this banking and financial information system to commit acts of appropriating large amounts of money.
Through investigation, on June 21, Ho Chi Minh City Police discovered that Tam had illegally infiltrated the financial and banking information system to appropriate money. On the same day, the Ho Chi Minh City Police Investigation Agency made an emergency search of Tam’s house, then made an emergency arrest.
The initial investigation determined that on November 23, 2022, Tam opened a payment account at this bank.
On May 23, 2023, Tam registered an account via this bank’s mobile phone application for the payment account opened on November 23, 2022 and installed on the phone, authenticated through the payment method. eKYC (a form of customer identification and authentication through the application of technology to verify the identity of the customer). The payment limit via the bank’s electronic application is only applicable to transactions not exceeding 100 hundred million VND/day. After that, Tam continued to open an online savings book of 1 million VND on the application.
According to the bank’s regulations, Tam is allowed to pledge a passbook to borrow online on the application, the maximum amount of 85%/value of the passbook can be pledged but not exceeding 2 billion VND/loan. Therefore, with the pledge of a savings book of 1 million VND, Tam can only borrow a maximum of 850,000 VND.
However, Tam illegally interfered in the bank’s financial information system, editing the code of the mortgaged savings book of 1 million VND to over 51,244 billion VND.
From there, Tam performed the manipulations of pledging this “terrible” value to withdraw money.
Specifically, from May 23 to June 9, Tam made 7 withdrawals from the above banking system, transferring to his account with a total amount of over 10 billion 500 million dong. After that, Tam transferred more than 500 million VND back to the bank, the rest appropriated nearly 10 billion VND.
It is known that the amount of money appropriated by Tam has been withdrawn and spent 6.5 billion dong, and about 3.5 billion dong has not been withdrawn yet, it was discovered by the bank that the account was blocked, and at the same time reported it to the police.
Ho Chi Minh City police information, when arrested, Tam confessed to using the money appropriated from the bank to pay debts, personal consumption and buy virtual money. This 9x hacker is also aware of violations of the law and has applied for permission to remedy the consequences from borrowed money from his family.
The case is currently being investigated by the police and is being handled strictly in accordance with the law.